Musical instrument.



PATENTED JUNE 20, 1905.

D. H. HAYWOOD. MUSICAL INSTRUMENT.

APPLICATION FILED MAY 28, 1902 2 SHEETS-SHEET l.

WITNESSES:

BY M M 6; ATTORNEYS D. H. HAYWOOD.

MUSICAL INSTRUMENT.

APPLICATION run my 28, 1902.

PATENTED JUNE 20, 1905.

2 BHEETS-SHEET 2.

I V v UNITED STATES Patented June 20,1905.

PATENT OFFICE.

MUSICAL INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 792,655, dated. June 20, 1905.

Application filed May 28, 1902. Serial No. 109,276.

To (LIZ 7071,0121, it nw/y concern:

Be it known that I, DANIEL HOWARD HAY- wooD, a citizen of the United States of America, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Musical Instruments, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to automatically-operated musical instrun'ients controlled by a traveling music-sheet, and particularly to the rewinding of the music-sheets after they have been employed in the instrument for controlling same while playing.

My invention consists in novel means for rewinding the music-sheets upon their delivery-rollers by power stored by or during the unwinding of the music-sheets from their delivery-rolls, in novel means for connecting and disconnecting the winding mechanism for the take-u p roller with a source of power, and in the means in combination therewith for causing the rewinding mechanism to operate at a predetermined point in the delivery of a music-sheet.

The objects of my invention are to rewind the music-sheets when desired in a simple and effective manner without the expenditure of power other than that stored in the instru ment; to store a surplus amount of power at each operation, so that there will always be a sufficient amount to completely rewind a roll; to improve and simplify mechanism for connecting and disconnecting the take-uproller winding mechanism with a source of power and to maintain the gear-train employed therefor always in mesh; to simplify the means for causing the rewinding to operate under manual or automatic control, and to cause eliicient resistance to be offered to the unwinding of a music-sheet from its roller, so as to maintain same firmly in engagement with the tracker-board, while reducing friction of the running parts to a minimum.

My invention further consists in certain novel details of construction and combination of parts, as will be pointed out in the following description, and further advantages will also appear hereinafter.

I will now proceed to describe a mechanism embodying my invention and will then point out the novel features in claims.

In the drawings, Figure 1 is a view in vertical transverse section of such portion of a musical instrument as is necessary for the illustration of my invention and showing a device embodying my invention in connection therewith. Fig. 9. is a view in front elevation of same, certain parts being broken away.

I have shown my invention herein as applied to an automatic wind instrument or organ in which a suitable casing 1 is provided, a winding-motor 2, a take-up roller 3, a driveshaft 41, carrying a CilIVG-1)Ull6y 5, a trackerboard 6. a shaft 7 for engaging a deliveryroller, a delivery-roller 8, and a music or note sheet 9.

The drive-shaft I is mounted in suitable bearings in the frame of the instrument and carries a gear-pinion 10 and one member 11 of a clutch rigidly secured thereto. The drive-pulley 5 and the other member 12 of the clutch 11 12 are secured together and loosely mounted upon the said shaft. The drive-pulley is in driving connection with the motor 2 and revolves continuously therewith. A shift-bar lat engages the loose member 12 of the said clutch and at its opposite end engages one arm of a bell-cranl lever 15. The other arm of the bell-crank lever is connected by a link 16 to an operating-lever 17, in turn connected by a toggle-link 18 to a reciprocating bar or reroll-stop 19. A spring 20 bears against the shift-bar 14: and tends to hold the members of the clutch in engagement and to resist the pulling out of the reroll-stop 19.

The take-up roller 3 is provided with a spur-gear 21 in mesh with the gear-pinion 10, and with the parts in their present position rotation of the motor 2 and drive-pulley 5 will cause the take-up roller to rotate to unwind a music-sheet from the delivery-roller 8 and to wind it upon itself.

The delivery-roller shaft 7 is provided with a winding drum 22, and a cord 23 is wound with one or more turns around the periphery thereof and passing around stationary idler or direction pulleys 24, 25, and 26 connects at opposite ends with drums 27 and 28. Unequal tension is exerted upon opposite ends of the cord 23, and hence in opposite directions of rotation upon the delivery-roller shaft 7 by Weights 29 and 30. The said weights are arranged to slide freely in guideways 31 and are connected by cords 32 and 33 to small drums 34 and 35, secured to rotate with their relatively larger drums 27 and 28, respectively. The weight 29 is heavier than the weight 30, and the cord 23 is wound around the drum 22 in such a direction to cause a constant pressure to be normally exerted against the unwinding of the music-sheet from the delivery-roller 8 and in favor of rewinding same thereon. During the unwinding of a music-sheet from its delivery-roller 8 to the take-up roller 3 the heavier weight 29 will be gradually raised, and the resistance thereof will cause just sufficient tension to be exerted upon the music-sheet to keep same in intimate engagement with the tracker-board. At the same time energy will be stored in the weight, which may afterward be utilized for rewinding the sheet upon its delivery-roll. To effect such rewinding, after a sheet has been unwound it is merely necessary to operate the reroll stop-bar 19. When this is pulled outward, the clutch membersll and 12 will be disengaged and the take-up roller disconnected from its driving mechanism. The motor may continue to operate and the pulley 5 continue to revolve; but the disconnecting of the clutch will have entirely freed the take-up roller from operative connection therewith, and the take-up roller will not be affected. The take-up roller being now free and no resistance being offered thereby to the weight 29, the energy stored up in the said weight by the raising of same will be given off by the said weight falling and in so falling will cause the rewinding of the music-sheet upon its delivery-roll. It will benoted that in disconnecting the driving means from the take-up roller the train of gearing 10 21 is always maintained in mesh. The pressure or tension exerted by the heavier weight 29 is always opposed by the lighter weight 30. The direction or idler pulley 24, however, causes a partial balancing of the weights so far as frictional pressure on the bearings of the shaft 7 is concerned, and hence wear upon the said bearings, due to friction, will be reduced.

The cord 23 is not attached to the windingdrum, but merely engages the same friction' ally, due to the one or more turns with which it is wound around same. By reason of this there is never any slack in the cord 23 nor in the cords 32 33. Cords used for the purpose of winding, as herein, vary in length, ac-

cording to variations in temperature and humidity, and such variation of length is in this device automatically compensated for. Furthermore, overrunning, due to momentum after a sheet has been completely rewound, is entirely prevented.

The periphery of the winding-drum 22 is preferably tapered inwardly from both ends toward the center and is so tapered for the followingreason: When a music-sheet is unwinding from the delivery-roller 8 and winding upon the take-up roller 3, that end of the cord 23 which is attached to the drum 27 is winding upon the drum 22, while the other end is paying away from it. This will revolve the drums 27 and 34 in such a direction as to gradually raise the weight 29, storing energy therein to be given out later in rewinding the roller 8, as previously explained. The cord 23 in winding upon the drum 22 will be constantly tending to climb the tapered or inclined surface thereof, and while it will certainly slip back toward the center as the cord from the other side is paid off each revolution of the delivery-roller and of the drum 22 will take up from the drum 27 an amount of the cord 23 equal to the circumference of the drum 22 at some point higher than the center thereof. When this action is reversed and the energy stored in the lifted Weight is given out to rewind the music-sheet upon the delivery-roller 8, the tendency of that end of the cord 23 which is secured to the drum 28 will be to climb the opposite tapered side of the drum 22 and the cord upon the heavy-weight side and which is nowpaying off to hug the center or lowest portion thereof. A revolution of the roller 8 and drum 22 in this direction will then pay off an amount of cord equal to a smaller circumference than when the cord was winding, as previously explained, and the weight 29 will drop a slightly less amount each revolution of the drum 22 when falling than when rising. Consequently a slight surplus of power will always be stored in the weight over that which is normally necessary for the rewinding of a music-sheet upon its delivery-roller 8. It will of course be understood that during the first few turns of the drum, upon. reversal of movement thereof, the cord will be unwinding from the taperedportion on one side and winding up upon the other side thereof and that during these few revolutions, dependent upon the number of turns of the cord upon the drum, there will be no slip as above described; but these few revolutions are but a very small proportionv of the whole and do not affect the general result. It sometimes happens that a loosely-wound roll is put into the instrument or that slack is left in connecting the musicsheet to the take-up roller or that slip takes place from one cause or another. If no surplus energy be stored in the rewinding mechanism, the same will then fail to entirely rewind the roll, and the rewinding will have to be completed by hand. By the provision of surplus energy complete rewinding of the music-rolls is always assured.

In addition to the man uall y-operated means for operating the clutch 11 12 I have further provided means whereby the said clutch may be automatically disconnected at a predetermined pointin the delivery of the music-sheet, so that the rewinding of the music-sheet may be entirely automatic, if so desired. Such means herein comprises an actuating member 36, adapted to engage one side of a pin upon the reciprocating bar or reroll-stop 19, a spring 37, a tripping-linger 38, normally supported by the traveling music-sheet, but adapted to enter an aperture therein, a link 39, having a tripping-button il), and a pivoted latch a1. If the tripping-linger be allowed to enter an aperture in the music-sheet, the trippii1g-button will strike the latch 41, disengaging same from the actuating member 36 and permitting the spring 37 to act to force the upper end of the actuating member 36 and reroll-stop 19 outwardly, whereby rewinding of the sheet will be automatically effected. The tripping mechanism may be automatically reset by pushing in the reroll-stop manually, and the said automatic means in no way interferes with the manual operation of the reroll-stop at any time. The said mechanism 36 37 38 39 il) 41 is not claimed herein pm so, as it forms part of the subject-matter of acopending application filed by me on the 4th day of February, 1902, and serially numbered 92, 5&6, and in which it is claimed.

IV hat I claim is- 1. In an automatic musical instrument, the combination with a take-up roller and a winding mechanism therefor, of a shaft for engaging a music-sheet delivery-roller and weights or their equivalents normally exerting unequal tension upon said shaft in opposite directions of rotation thereof.

2. In an automatic musical instrument, the combination with a take-up roller and a wind-- ing mechanism therefor, of ashaft for engaging a music-sheet delivery-roller, a windingdrum in rotative engagement with said shaft, a cord wound around said drum, and weights or their equivalents normally exerting unequal tension in opposite directions upon said cord.

3. In an automatic musical instrument, the combination with a take-up roller and a winding mechanism therefor, of a shaft for engaging a music-sheet delivery-roller, a windingd rum, having a tapered periphery, in rotative engagement with said shaft, a cord wound around said drum, and weights or their equivalents normally exerting unequal tension in opposite directions upon said cord.

&. In an automatic musical instrument, the combination with a take-up roller and a winding mechanism therefor, of a shaft for engaging a music-sheet delivery-roller, a windingdrum, whose periphery tapers inwardly from both ends toward the center, in rotative engagement with said shaft,a cord Wound around said drum, and Weights or their equivalents normally exerting unequal tension in opposite directions upon said cord.

5. In an automatic musical instrument, the combination with a take-up roller and a winding mechanism therefor, of a shaft for engaging amusic-sheet delivery-roller, a windingdrum in rotative engagement with said shaft, a cord wound around said drum, a weight or its equivalent normally exerting tension upon said cord in a direction opposite the delivery of a music-sheet from said delivery-roller, and another weight or its equivalent normally exerting tension upon the cord upon the opposite side of the drum, and in the opposite direction to that exerted by the lirstnamed weight.

6. In an automatic musical instrument, the combination with a take-up roller and a winding mechanism therefor, and a connecting and disconnecting clutch for said winding mechanism, of a shaft for engaging a music-sheet delivery-roller, weights or their equivalents normally exerting unequal tension upon said shaft in opposite directions of rotation thereof, and a manually-operated bar for operating said connecting and disconnecting clutch, and automatic disconnecting means for Said clutch, operating at a predetermined point in the delivery of a music-sheet.

7. In an automatic musical instrument, the combination with a drive-shaft, of a gear-pinion secured thereon, a clutch between said drive-shaft and a source of power, a take-up roll, a gear-wheel secured thereto and in permanent rotatable engagement with said gearpinion, a musicsheet deliveryroller and a weight or its equivalent normally exerting a tension upon said delivery-roller in a direction opposite to the direction of its rotation during the delivery of its music-sheet to the takeup roller.

8. In an automatic musical instrument, the combination with a drive-shaft, of a gear-pinion secured thereon, a clutch between said drive-shaft and a source of power, a take-up roller, a gear-wheel secured thereto and in permanent rotatable engagement with said gearpinion, a shaft for engaging a music-sheet delivery roller, weights or their equivalents normally exerting unequal tension upon said shaft in opposite directions of rotation thereof, and automatic means for operating said clutch at a predetermined point in the delivery of the music-sheet.

DANIEL HOWARD HAYWOOD.

\Vi tnesses:

M. M. GoNovnn, M. PAIE. 

